public static void Draw()
        {
            _render_stopwatch.Restart();

            if (ready)
            {
                ToolManager.TrigBeforeRender();
                PostProcessesManager.Begin();
                {
                    PostDrawStoryboard();
                    PostProcessesManager.Process();
                }
                PostProcessesManager.End();
                ToolManager.TrigAfterRender();
            }

            _render_stopwatch.Stop();
        }